Решите уравнения: x−152=84+165; 533−y=438−215; 481−z=115+123; x+218=519−97; (x+52)−71=63; (82−t)+67=111; 314−(z−59)=252.

1. \(x-152=84+165\); \(x-152=249\); \(x=249+152=\mathbf{401}\).
2. \(533-y=438-215\); \(533-y=223\); \(y=533-223=\mathbf{310}\).
3. \(481-z=115+123\); \(481-z=238\); \(z=481-238=\mathbf{243}\).
4. \(x+218=519-97\); \(x+218=422\); \(x=422-218=\mathbf{204}\).
5. \((x+52)-71=63\); \(x-19=63\); \(x=63+19=\mathbf{82}\).
6. \((82-t)+67=111\); \(149-t=111\); \(t=149-111=\mathbf{38}\).
7. \(314-(z-59)=252\); \(373-z=252\); \(z=373-252=\mathbf{121}\).

Ответ: x=401; y=310; z=243; x=204; x=82; t=38; z=121.